But Channing Tatum and Jonah Hill are here to warn you that you should never mix drinking and dares.

The pair joined forces in 2012 for cop comedy 21 Jump Street, and Magic Mike star Channing was so convinced that the film would make it big at the box office that he made a bet with his co-star while out on the lash that would test even the closest of friends.

Jonah was so adamant that the comedy wouldn't pass $35 million – the target Channing set – in its first week that he announced in the company of others: "I will kiss your tip! I will kiss the tip of your d*** through your underwear if we make $35 million."

Channing told GQ magazine: "I haven't made him do it yet. For obvious reasons. That's a bad bet to lose – it's not too good to win, either. But definitely the shame of it would be enjoyable. It's my trump card, for sure.

“That's a bad bet to lose – it's not too good to win, either”

Channing Tatum

"He tries not to bring it up at all costs. Unless he did something horrible to me, I don't know if I could ever cash it in. It would change our relationship forever."

The 34-year-old admitted that if he calls in the bet, he'll have to check with his wife, Jenna Dewan, before going ahead with it, saying: "I'd have to clear it with Jenna. There's all sorts of loopholes that have to be taken into consideration."

Channing has teamed up with Jonah again for the sequel to 21 Jump Street, ingeniously called 22 Jump Street – so let's hope there's no more boozy bets made.

Unfortunately, Tatum is so fond of a tipple that we can't ensure that won't happen.